Chinning cost

How much would 96 - 99 Ranged cost roughly by chinning in the MM tunnel, if I have 47 Prayer and 40 Defense? Looking for a rough estimate.

 

[KandyPants]

I have similar stats, 40 def, 44 pray, 93 range.

It'll cost around 10-25m I think

 

[Surround Sound]

I would advise taking one hundred chins and using them and then recording the amount of experience points you gain. If you can't be bothered calculating the cost from that post it here and I'll do it for you.